medium to large bumps or pot holes and you're always going to get a bump in those situations. I drove on my SPL V2s for years and many people still run them because they're the best you can buy in terms of an aftermarket arm. With that being said, if it is a daily driver, stick with new OEM tension rods, or use your old rods with new bushings. I'm happy with these Nismos: La-Z-Link